GPT-6.1 Terra Arrives at $1/$5 — Half the Rate of a Model OpenAI Shipped 27 Days Ago

OpenAI announced GPT-6.1 Terra on October 26, 2026, introducing a new mid-sized model priced at $1 per million input tokens and $5 per million output tokens. This release arrives 27 days after the launch of GPT-6.1 Sol. For developers and…